Patent attributes
An auxiliary device is adapted to be electrically connected to a lawn mower, and includes a connecting unit having a first arcuate rack member, a housing turnably mounted on the connecting unit, a guard member turnably mounted on the housing and having a second arcuate rack member, and first and second pinions meshed with the first and second arcuate rack members, respectively. A sweeping area of a grass cutting member is adjusted by turning of the housing between a first position to increase a mowing area and to place a skirt portion of the guard member rearwardly of the grass cutting member, and a second position to enable the grass cutting member to be operated on an obstructed area and to place the skirt portion upwardly of the grass cutting member.